Probably a stupid question, but will we ever have something like a microwave to make things cold? Is there a reason this can't exist?

Melatonin@lemmy.dbzer0.com to Asklemmy@lemmy.ml – 486 points –
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You should try to build a chamber that sprays liquid nitrogen or other cryogenic liquids at the food.

Idk, good luck.

I believe that the problem with this method is that the nitrogen will expand in contact with the hot object, and this being a chamber means that there's risk of explosion.

They never said the chamber had to be pressure tight ...